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Finding the Fourth Proportional to 47,406.69, 71,108.82 and 19,326.63

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Solution

The fourth proportional to 47,406.69, 71,108.82 and 19,326.63 is: 28,989.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,406.69 : 71,108.82 = 19,326.63 : x
  2. Step 2: Convert to fraction form
    47,406.69/71,108.82 = 19,326.63/x
  3. Step 3: Cross multiply
    47,406.69x = 71,108.82 × 19,326.63
  4. Step 4: Simplify right side
    47,406.69x = 1,374,293,853.88
  5. Step 5: Solve for x
    x = 1,374,293,853.88/47,406.69
  6. Step 6: Final answer
    x = 28,989.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.